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RAID installation at boot questions

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I've added RAID and two new hard drives to my desktop. The RAID appears
to work, once it is up and running. Alas, on boot it is not being
properly set up. Everything else comes up correctly.

I have two new four terabyte drives set aside for RAID. They are
partitioned, with one partition on each, and the two partitions
combined in a RAID1 array. So far so good.

On top of the RAID1 array is an encrypted device. This is where booting
seems to break down. I do not get the device files related to the
encrypted layer in /dev/mapped.

On top of the encrypted layer is an LVM2 physical volume (PV). Within
that is one logical volume, with an ext4 file system on it.

I see messages in syslog for the two drives originally in the system,
sda and sdb. However, I don't see any for the two new drives, sdc and
sdd. E.g:

systemd[1]: Started Cryptography Setup for sdb3_crypt.

I can manually complete the process after the system has booted:

cryptsetup luksOpen /dev/md0 encryptedRaid
mount /dev/mapper/hawk--vg--raid-crc2020

What do I do to automate that?

Once I have done that:

root@hawk:~# ll /dev/mapper/
total 0
drwxr-xr-x  2 root root     220 Nov 13 20:13 ./
drwxr-xr-x 22 root root    3860 Nov 13 20:13 ../
crw-------  1 root root 10, 236 Nov 13 20:08 control
lrwxrwxrwx  1 root root       7 Nov 13 20:13 encryptedRaid -> ../dm-6
lrwxrwxrwx  1 root root       7 Nov 13 20:09 hawk2017large-crc2017 -> ../dm-5
lrwxrwxrwx  1 root root       7 Nov 13 20:08 hawk--vg-home -> ../dm-3
lrwxrwxrwx  1 root root       7 Nov 13 20:13 hawk--vg--raid-crc2020 -> ../dm-7
lrwxrwxrwx  1 root root       7 Nov 13 20:08 hawk--vg-root -> ../dm-1
lrwxrwxrwx  1 root root       7 Nov 13 20:08 hawk--vg-swap_1 -> ../dm-2
lrwxrwxrwx  1 root root       7 Nov 13 20:08 sda5_crypt -> ../dm-0
lrwxrwxrwx  1 root root       7 Nov 13 20:09 sdb3_crypt -> ../dm-4
root@hawk:~# 

Prior to manually completing the process, encryptedRaid and
hawk--vg--raid-crc2020 are absent.



Also, I get the following message in syslog at boot time:

udisksd[747]: Failed to load the 'mdraid' libblockdev plugin

How badly do I need mdraid, and do I get it from the
libblockdev-mdraid2 package?

-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

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Thread

RAID installation at boot questions Charles Curley <charlescurley@charlescurley.com> - 2020-11-14 04:50 +0100
  Re: RAID installation at boot questions john doe <johndoe65534@mail.com> - 2020-11-14 08:20 +0100
    Re: RAID installation at boot questions Charles Curley <charlescurley@charlescurley.com> - 2020-11-14 20:50 +0100
      Re: RAID installation at boot questions Toni Mas Soler <antomassol@gmail.com> - 2020-11-14 23:10 +0100
        Re: RAID installation at boot questions Charles Curley <charlescurley@charlescurley.com> - 2020-11-15 01:00 +0100
      [Solved] Re: RAID installation at boot questions Charles Curley <charlescurley@charlescurley.com> - 2020-11-20 19:00 +0100

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